| /***************************************************************************/ |
| /* */ |
| /* cidobjs.c */ |
| /* */ |
| /* CID objects manager (body). */ |
| /* */ |
| /* Copyright 1996-2015 by */ |
| /* David Turner, Robert Wilhelm, and Werner Lemberg. */ |
| /* */ |
| /* This file is part of the FreeType project, and may only be used, */ |
| /* modified, and distributed under the terms of the FreeType project */ |
| /* license, LICENSE.TXT. By continuing to use, modify, or distribute */ |
| /* this file you indicate that you have read the license and */ |
| /* understand and accept it fully. */ |
| /* */ |
| /***************************************************************************/ |
| |
| |
| #include <ft2build.h> |
| #include FT_INTERNAL_DEBUG_H |
| #include FT_INTERNAL_STREAM_H |
| |
| #include "cidgload.h" |
| #include "cidload.h" |
| |
| #include FT_SERVICE_POSTSCRIPT_CMAPS_H |
| #include FT_INTERNAL_POSTSCRIPT_AUX_H |
| #include FT_INTERNAL_POSTSCRIPT_HINTS_H |
| |
| #include "ciderrs.h" |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* The macro FT_COMPONENT is used in trace mode. It is an implicit */ |
| /* parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log */ |
| /* messages during execution. */ |
| /* */ |
| #undef FT_COMPONENT |
| #define FT_COMPONENT trace_cidobjs |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* SLOT FUNCTIONS */ |
| /* */ |
| /*************************************************************************/ |
| |
| FT_LOCAL_DEF( void ) |
| cid_slot_done( FT_GlyphSlot slot ) |
| { |
| slot->internal->glyph_hints = NULL; |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| cid_slot_init( FT_GlyphSlot slot ) |
| { |
| CID_Face face; |
| PSHinter_Service pshinter; |
| |
| |
| face = (CID_Face)slot->face; |
| pshinter = (PSHinter_Service)face->pshinter; |
| |
| if ( pshinter ) |
| { |
| FT_Module module; |
| |
| |
| module = FT_Get_Module( slot->face->driver->root.library, |
| "pshinter" ); |
| if ( module ) |
| { |
| T1_Hints_Funcs funcs; |
| |
| |
| funcs = pshinter->get_t1_funcs( module ); |
| slot->internal->glyph_hints = (void*)funcs; |
| } |
| } |
| |
| return 0; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* SIZE FUNCTIONS */ |
| /* */ |
| /*************************************************************************/ |
| |
| |
| static PSH_Globals_Funcs |
| cid_size_get_globals_funcs( CID_Size size ) |
| { |
| CID_Face face = (CID_Face)size->root.face; |
| PSHinter_Service pshinter = (PSHinter_Service)face->pshinter; |
| FT_Module module; |
| |
| |
| module = FT_Get_Module( size->root.face->driver->root.library, |
| "pshinter" ); |
| return ( module && pshinter && pshinter->get_globals_funcs ) |
| ? pshinter->get_globals_funcs( module ) |
| : 0; |
| } |
| |
| |
| FT_LOCAL_DEF( void ) |
| cid_size_done( FT_Size cidsize ) /* CID_Size */ |
| { |
| CID_Size size = (CID_Size)cidsize; |
| |
| |
| if ( cidsize->internal ) |
| { |
| PSH_Globals_Funcs funcs; |
| |
| |
| funcs = cid_size_get_globals_funcs( size ); |
| if ( funcs ) |
| funcs->destroy( (PSH_Globals)cidsize->internal ); |
| |
| cidsize->internal = NULL; |
| } |
| } |
| |
| |
| FT_LOCAL_DEF( FT_Error ) |
| cid_size_init( FT_Size cidsize ) /* CID_Size */ |
| { |
| CID_Size size = (CID_Size)cidsize; |
| FT_Error error = FT_Err_Ok; |
| PSH_Globals_Funcs funcs = cid_size_get_globals_funcs( size ); |
| |
| |
| if ( funcs ) |
| { |
| PSH_Globals globals; |
| CID_Face face = (CID_Face)cidsize->face; |
| CID_FaceDict dict = face->cid.font_dicts + face->root.face_index; |
| PS_Private priv = &dict->private_dict; |
| |
| |
| error = funcs->create( cidsize->face->memory, priv, &globals ); |
| if ( !error ) |
| cidsize->internal = (FT_Size_Internal)(void*)globals; |
| } |
| |
| return error; |
| } |
| |
| |
| FT_LOCAL( FT_Error ) |
| cid_size_request( FT_Size size, |
| FT_Size_Request req ) |
| { |
| PSH_Globals_Funcs funcs; |
| |
| |
| FT_Request_Metrics( size->face, req ); |
| |
| funcs = cid_size_get_globals_funcs( (CID_Size)size ); |
| |
| if ( funcs ) |
| funcs->set_scale( (PSH_Globals)size->internal, |
| size->metrics.x_scale, |
| size->metrics.y_scale, |
| 0, 0 ); |
| |
| return FT_Err_Ok; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* FACE FUNCTIONS */ |
| /* */ |
| /*************************************************************************/ |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* cid_face_done */ |
| /* */ |
| /* <Description> */ |
| /* Finalizes a given face object. */ |
| /* */ |
| /* <Input> */ |
| /* face :: A pointer to the face object to destroy. */ |
| /* */ |
| FT_LOCAL_DEF( void ) |
| cid_face_done( FT_Face cidface ) /* CID_Face */ |
| { |
| CID_Face face = (CID_Face)cidface; |
| FT_Memory memory; |
| CID_FaceInfo cid; |
| PS_FontInfo info; |
| |
| |
| if ( !face ) |
| return; |
| |
| cid = &face->cid; |
| info = &cid->font_info; |
| memory = cidface->memory; |
| |
| /* release subrs */ |
| if ( face->subrs ) |
| { |
| FT_Int n; |
| |
| |
| for ( n = 0; n < cid->num_dicts; n++ ) |
| { |
| CID_Subrs subr = face->subrs + n; |
| |
| |
| if ( subr->code ) |
| { |
| FT_FREE( subr->code[0] ); |
| FT_FREE( subr->code ); |
| } |
| } |
| |
| FT_FREE( face->subrs ); |
| } |
| |
| /* release FontInfo strings */ |
| FT_FREE( info->version ); |
| FT_FREE( info->notice ); |
| FT_FREE( info->full_name ); |
| FT_FREE( info->family_name ); |
| FT_FREE( info->weight ); |
| |
| /* release font dictionaries */ |
| FT_FREE( cid->font_dicts ); |
| cid->num_dicts = 0; |
| |
| /* release other strings */ |
| FT_FREE( cid->cid_font_name ); |
| FT_FREE( cid->registry ); |
| FT_FREE( cid->ordering ); |
| |
| cidface->family_name = NULL; |
| cidface->style_name = NULL; |
| |
| FT_FREE( face->binary_data ); |
| FT_FREE( face->cid_stream ); |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* cid_face_init */ |
| /* */ |
| /* <Description> */ |
| /* Initializes a given CID face object. */ |
| /* */ |
| /* <Input> */ |
| /* stream :: The source font stream. */ |
| /* */ |
| /* face_index :: The index of the font face in the resource. */ |
| /* */ |
| /* num_params :: Number of additional generic parameters. Ignored. */ |
| /* */ |
| /* params :: Additional generic parameters. Ignored. */ |
| /* */ |
| /* <InOut> */ |
| /* face :: The newly built face object. */ |
| /* */ |
| /* <Return> */ |
| /* FreeType error code. 0 means success. */ |
| /* */ |
| FT_LOCAL_DEF( FT_Error ) |
| cid_face_init( FT_Stream stream, |
| FT_Face cidface, /* CID_Face */ |
| FT_Int face_index, |
| FT_Int num_params, |
| FT_Parameter* params ) |
| { |
| CID_Face face = (CID_Face)cidface; |
| FT_Error error; |
| PSAux_Service psaux; |
| PSHinter_Service pshinter; |
| |
| FT_UNUSED( num_params ); |
| FT_UNUSED( params ); |
| FT_UNUSED( stream ); |
| |
| |
| cidface->num_faces = 1; |
| |
| psaux = (PSAux_Service)face->psaux; |
| if ( !psaux ) |
| { |
| psaux = (PSAux_Service)FT_Get_Module_Interface( |
| FT_FACE_LIBRARY( face ), "psaux" ); |
| |
| if ( !psaux ) |
| { |
| FT_ERROR(( "cid_face_init: cannot access `psaux' module\n" )); |
| error = FT_THROW( Missing_Module ); |
| goto Exit; |
| } |
| |
| face->psaux = psaux; |
| } |
| |
| pshinter = (PSHinter_Service)face->pshinter; |
| if ( !pshinter ) |
| { |
| pshinter = (PSHinter_Service)FT_Get_Module_Interface( |
| FT_FACE_LIBRARY( face ), "pshinter" ); |
| |
| face->pshinter = pshinter; |
| } |
| |
| FT_TRACE2(( "CID driver\n" )); |
| |
| /* open the tokenizer; this will also check the font format */ |
| if ( FT_STREAM_SEEK( 0 ) ) |
| goto Exit; |
| |
| error = cid_face_open( face, face_index ); |
| if ( error ) |
| goto Exit; |
| |
| /* if we just wanted to check the format, leave successfully now */ |
| if ( face_index < 0 ) |
| goto Exit; |
| |
| /* check the face index */ |
| /* XXX: handle CID fonts with more than a single face */ |
| if ( ( face_index & 0xFFFF ) != 0 ) |
| { |
| FT_ERROR(( "cid_face_init: invalid face index\n" )); |
| error = FT_THROW( Invalid_Argument ); |
| goto Exit; |
| } |
| |
| /* now load the font program into the face object */ |
| |
| /* initialize the face object fields */ |
| |
| /* set up root face fields */ |
| { |
| CID_FaceInfo cid = &face->cid; |
| PS_FontInfo info = &cid->font_info; |
| |
| |
| cidface->num_glyphs = (FT_Long)cid->cid_count; |
| cidface->num_charmaps = 0; |
| |
| cidface->face_index = face_index & 0xFFFF; |
| |
| cidface->face_flags |= FT_FACE_FLAG_SCALABLE | /* scalable outlines */ |
| FT_FACE_FLAG_HORIZONTAL | /* horizontal data */ |
| FT_FACE_FLAG_HINTER; /* has native hinter */ |
| |
| if ( info->is_fixed_pitch ) |
| cidface->face_flags |= FT_FACE_FLAG_FIXED_WIDTH; |
| |
| /* XXX: TODO: add kerning with .afm support */ |
| |
| /* get style name -- be careful, some broken fonts only */ |
| /* have a /FontName dictionary entry! */ |
| cidface->family_name = info->family_name; |
| /* assume "Regular" style if we don't know better */ |
| cidface->style_name = (char *)"Regular"; |
| if ( cidface->family_name ) |
| { |
| char* full = info->full_name; |
| char* family = cidface->family_name; |
| |
| |
| if ( full ) |
| { |
| while ( *full ) |
| { |
| if ( *full == *family ) |
| { |
| family++; |
| full++; |
| } |
| else |
| { |
| if ( *full == ' ' || *full == '-' ) |
| full++; |
| else if ( *family == ' ' || *family == '-' ) |
| family++; |
| else |
| { |
| if ( !*family ) |
| cidface->style_name = full; |
| break; |
| } |
| } |
| } |
| } |
| } |
| else |
| { |
| /* do we have a `/FontName'? */ |
| if ( cid->cid_font_name ) |
| cidface->family_name = cid->cid_font_name; |
| } |
| |
| /* compute style flags */ |
| cidface->style_flags = 0; |
| if ( info->italic_angle ) |
| cidface->style_flags |= FT_STYLE_FLAG_ITALIC; |
| if ( info->weight ) |
| { |
| if ( !ft_strcmp( info->weight, "Bold" ) || |
| !ft_strcmp( info->weight, "Black" ) ) |
| cidface->style_flags |= FT_STYLE_FLAG_BOLD; |
| } |
| |
| /* no embedded bitmap support */ |
| cidface->num_fixed_sizes = 0; |
| cidface->available_sizes = NULL; |
| |
| cidface->bbox.xMin = cid->font_bbox.xMin >> 16; |
| cidface->bbox.yMin = cid->font_bbox.yMin >> 16; |
| /* no `U' suffix here to 0xFFFF! */ |
| cidface->bbox.xMax = ( cid->font_bbox.xMax + 0xFFFF ) >> 16; |
| cidface->bbox.yMax = ( cid->font_bbox.yMax + 0xFFFF ) >> 16; |
| |
| if ( !cidface->units_per_EM ) |
| cidface->units_per_EM = 1000; |
| |
| cidface->ascender = (FT_Short)( cidface->bbox.yMax ); |
| cidface->descender = (FT_Short)( cidface->bbox.yMin ); |
| |
| cidface->height = (FT_Short)( ( cidface->units_per_EM * 12 ) / 10 ); |
| if ( cidface->height < cidface->ascender - cidface->descender ) |
| cidface->height = (FT_Short)( cidface->ascender - cidface->descender ); |
| |
| cidface->underline_position = (FT_Short)info->underline_position; |
| cidface->underline_thickness = (FT_Short)info->underline_thickness; |
| } |
| |
| Exit: |
| return error; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* cid_driver_init */ |
| /* */ |
| /* <Description> */ |
| /* Initializes a given CID driver object. */ |
| /* */ |
| /* <Input> */ |
| /* driver :: A handle to the target driver object. */ |
| /* */ |
| /* <Return> */ |
| /* FreeType error code. 0 means success. */ |
| /* */ |
| FT_LOCAL_DEF( FT_Error ) |
| cid_driver_init( FT_Module driver ) |
| { |
| FT_UNUSED( driver ); |
| |
| return FT_Err_Ok; |
| } |
| |
| |
| /*************************************************************************/ |
| /* */ |
| /* <Function> */ |
| /* cid_driver_done */ |
| /* */ |
| /* <Description> */ |
| /* Finalizes a given CID driver. */ |
| /* */ |
| /* <Input> */ |
| /* driver :: A handle to the target CID driver. */ |
| /* */ |
| FT_LOCAL_DEF( void ) |
| cid_driver_done( FT_Module driver ) |
| { |
| FT_UNUSED( driver ); |
| } |
| |
| |
| /* END */ |
